Apparatus for handling ore and the like



Dec. i8 1923. RAWM c. E. DAVIS APPARATUS FOR HANDLING ORE AND TI'IEMLII'KE,VJ

A 7 TQQ/VE V Dec. 18 1923.

C. E. DAVIS APPARATUS Foa HANDLING om: AND THE LIKE Filed Oct. l0. 1921 2 Shees-Sheet 2 Patented lDlec. IS; IOZE@ i V ariane Partnr enteren CHARLES E. DAVIS, OF CHICAGO, ILLINOIS, ASSIGNOR IO GOODMAN MANUFACTURING COMPY, 'OI CHICAGO, ILLINOIS, A CORPORATION Oli ILLINOIS.

MPARATU@ FOR. HANDLING ORE AND TESI-E LIKE.

.applicationflled October 10, )1921. Serial No. 506,711.

To all whomt may concern.'

Be it known that I, CHARLES E. DAVIS, a citizen of the United States, residing at Ubi# cago, in the county of Cook and State ol Illinois, have invented an Improvement in Apparatus for Handling @re and the like, of which the following is aspeciication.

This invention relates to improvements in apparatus for handling ore and the like and has for its principal object to provide an improved apparatus for transporting loose ,material from one place to another, as for instance in a mine..

. In tvvo rior applications, Serial No. 382,- 696, tiled l ay 20, 1920, and Serial No. 460,- 865, led April 13, 1921, I have disclosed devices ot the class above described comprising a scraper and a movable frame adapted to form a support about Vwhich said scraper is guided. In the present application, I utilize the same general principles of `construction and operation as described in the above-mentioned applications, but provide certain improvements in the construction et the scraper as will hereinafter more Jfully appear.

ll/Iy invention may be best understood by. reference to the accompanying drawings, in which Figure 1 is a top plan view ol my improved apparatus in Working position in a mine.

Fig. 2 is a side view orp the apparatus shown in llg. 1.

Ilig. 3 is an enlarged top View ot the scrapermade in accordance with my invention. v

Fig. lis a cross-section of the scraper taken on line lL-l of Fig. 3.

Fig. 5 is a cross-section of the scraper taken on line 5-5 of Fig. 3.

Fig. 6 is an enlarged detail plan view of a casting forming a portion ot the scraper. .Y

Fig. 7 is a cross-.section taken on line 7-7 of lFig. 1 showing the arrangement ot the lateral bearing means carried by the scraper and engaging With the main trame of the scraping apparatus.

In the embodiment of my invention illustrated, the apparatus is adapted for use in mining operations in which loose material is to be transported from the Working tace, or place from which-the material is being mined, to a place where it may be loaded on mine cars. The apparatus comprises a scraper 1 adapted to be moved on the mine bottom by meansof flexible draft cables 2 and 3, and about a. guiding trame l liXed \on the mine bottom in position to form a arin for one side of the scraper as the latter 1s advanced into the loose material. The 'frame d is held in place'by means ot a guiding device, such as a pair ot mine jacks 5 and 5a of the usual type Which are inserted in a longitudinally disposed slot 6 formed in the frame. rllhe jacks 5 and 5 are spaced apart so as to guide the movement of the frame in a longitudinal direction. 'Ihe trame may be moved longitudinally by any suitable means such as a draft device attached to one et the jacks. In the embodiment illustrated the draft device comprises a rope 1l hooked to the forward jack 5 and'operated by a ratchet Wheel 8 mounted at the rear end ot the trame. Said ratchet Wheel is connected with a drum 10 about which the rope 11 is Wound, and is adaptedto be manually operated by the handle By means of this construction the Ventire fra-me is movable in a longitudinal direction on the mine bottom so as to advance the scraper 1 as desired.

'Ihe head frame t forms the subject ot a separate application Ser. No. 506,712 tiled by me @et l0, 1921, and has as its principal features an arcuate shield or bearing member12, a pair of longitudinally disposed beams 13, 13, a rear end member 1l on which the ratchet mechanism ior advancing the frame is mounted, and suitable side trame members 15 and 16 connecting the shield l2 with the rear end member 14e. lhe curved or bearing tace of the shield 12 is provided with a centrally disposed recess or groove 17, a substantially vertical bearing surface 18 above said recess, and anoutvvardly and downwardly extending bearing surface 19 below said recess. A plurality of sheaves 20, 20, are arranged about the shield and in line With the recess 17. |lhe arrangement is such that the draft ropes 2 and 3 are adapted to engage Within the recess 17 and bear on the sheaves 20, 20, as the device is operated. Further details of the head frame need not be described for the purpose of understanding the present invention, which relates particularly to the scraper.

Referring new to the scraper, details thereof are shown in lligs. 3 to 7 inclusive. which illustrate a preferred form which I find to particularl adapted for use with an apparatus such as ereinbefore described.

In general conformation and outline this scraper is similar to those disclosed and claimed in my prior applications hereinbefore mentioned that is to say, the scraper is bottomless, and is provided with a curved inner wall 21 adapted to conform substantially with the curved shield 12, and a curved outer wall 22 having upright forward margin 23 forming the cutting edge of the scraper as it enters the loose material. My improved form of scraper illustrated herewith is provided with a'plurality of antifriction members 25, 25, adapted to engage the arcuate shield 12 while the scraper is being moved thereabout. In the embodiment shown, four of these anti-friction members are provided. Two of these are arranged adjacent the forward end of the scra er, one bein arranged above the central y disposed s ot 17 and engaging the bearlng face 18, and the other arranged below said slot and engaging the outwardly inclined bearing face 19 of the head frame 4, as shown in Fi 7. The second pair of anti-friction mem ers or rollers 25, 25, are mounted adjacent the rear end of the scraper, above and below the recess 17, as in the vcase of the first pair of friction members.

It will be understood, however, that any suitable arrangement of anti-friction members may be provided as desired in order to afford the scraper substantial lateral bearin on the shield as it passes about it.

'he anti-friction members 25, 25, are each preferably mounted in a housing 26, set into the side wall 21, and closed to the interior of the scraper, as shown in Fig. 7

The scraper body is constructed of a plurality of parts, the principal parts coinprising an inner wall portion 21, an outer wall portion 22, and a rear bottom piece 30. The side portions 21a and 22a are preferably of sheet metal, and jointed together at the rear of the scraper above the rear bottom piece 30, as shown in Fi 2. Said bottom piece 30 is irregular in s ape, as shown .in the cross-sections in Figs. 4, 5, 6 and 7, and

includes a rear wall portion 31 inclined' forwardly and downwardly and terminating in a cutting edge 32, adapted to rest on the mine floor. The bottom portion 30 is preferably made of a casting, owing -to y its having such an irregular form, and furthermore, being subject to considerable wear. The forward edge 23 of the outer wall 22 is provided with a wearing member 23* and the lower margins of the walls 21- and 22 are .also provided with inwardly extending wearing strips 21" and 22, respectively. By reason of the construction just described, the scraper may be economically made of relatively light material, but provided with suitable heavy wearing pieces where necessary.

Although I have shown and described I draft-operated scraper having a plurality v of anti-friction rollers mounted on one side thereof and adapted to .engage said curved bearing portion. v,

2. In an apparatus of the class described, the combination of a frame having a curved bearing portion, a draft-operated scraper having one side thereof curved to conform substantially with said curved bearing portion, and a plurality of anti-friction members mounted o'n said curved side of the scraper and adapted to engage said curved bearing portion.

3. In an apparatus of the class described a bottomless scraper comprising a rear end piece formed of a single casting having a forwardly and downwardly extending rear wall portion, horizontally-curved side walls formed of sheet metal and secured to said casting, and inwardly-extending wearing members secured to the bottom mar- 'gin of said side walls forwardly of said casting.v

Signed at Chicago, in the county of C'ook and State of Illlnois, this sixth day of October, 1921.

` CHARLES E. DAVIS. 

